Railway car



Nov. 5, 1940. A. H. LUNDBERG RAILWAY GAR 2 Sheets-Sheet 1 Filed NOV. 14, 1958 --.W l. H HQ w W J.........\.M.... .6... 9o..` 5 e o 9.

NOV. 5, 1940. A, H, LUNDB'EG 2,220,253

RAILWAY om Filed Nov.. 14, Y1938 2 sheets-sheet 2 Patented Nov. 5, 1940 UNITED STATES RAILWAY CAR Arthur H. Lundberg, Chicago, lili, assignor to Pullman-Standard Car Manufacturing Company, Chicago, Ill., a corporation of Delaware Application November 14, 193s, 'serial No. 240,244

2 Claims.

The principal object of this invention is to provide a self supporting floor particularly suitable for use in railway passenger cars, and which preferably may be constructed as a subassembly for subsequent installation as a unit.

Other objects and advantages will become apparent as the disclosure proceeds and the description is read in conjunction with the accompanying drawings, in Which- 1f, Fig. l is a. vertical transverse sectional view of' a railway car showing the floor, constituting the subject matter of the.present invention, as applied to a duplex or double decked car;

Fig. 2 is a vertical longitudinal sectional view taken through adjoiningrooms of a duplex car showing the support for the floor, shown in Fig. l, along two opposite sides of the room;

Fig. 3 is an enlarged detail view of the oor, shown in Fig. l, and corresponding to the showing of Fig. 1;

Fig. 4 is a vertical sectional view of the floor taken on the line 4-4 of Fig. 3;

Fig. 5 is a plan view of the iloor shown in Fig. v

1 with a portion of the cork flooring broken away to show the underneath structure.

A preferred embodiment of this invention is selected for the purpose of description only and is not intended to place limitations on the claims beyond those required by the state of the prior art.

Due to the lack of room in bedrooms and other relatively small accommodations in passenger cars it is desirable wherever possible to construct portions of the rooms as sub-assemblies and then to install these sub-assemblies as units into the ear body. These units can thus be fabricated away from the car body in shops whereample space is provided without any thought of possible over-crowding of the car 4 while it is under construction. Furthermore, the fabrication of these various sub-assemblies canbe carried on simultaneously and their installation into the car structure can be made in their logical sequence. This avoidsvdelays due to the inability of the men to work eiiiciently in an overcrowded room and greatly increases y the standard of workmanship obtainable.

The present invention relates to a floor which is self-supporting in that it can be suspended from its four sides and is capable of carrying the required loading without any additional cross bracings. This oor can be built as a subassembly and then brought to the car and installed as a unit. For the purpose of disclo: ing the invention a and suitable end frames (not shown).

car having duplex or double deck rooms has been chosen and the oor in the upper room only has been selected for the disclosure.

General organization of car Referring to Figure l the car body is made up -5 of an underframe, generally indicated at 20, a pair of side frames 2| and 22, a roof frame 23, The underfrarnencludes a center sill 24, a pair of 10 side' sills 25 and 26 and longitudinal door stringers 21 through 32, inclusive. These various members tie into the car framing in some suitable manner and are reenforced by transverse framinsg members one of which is shown in Fig. 15 1, at

A plurality of duplex rooms are arranged along-one side of the car and an aisle 34 runs longitudinally of the car body along the other side, as shown in Figure 1. Each room, whether 20 it be an upper or a. lower, is provided with a window 35, a sofa, generally indicated at 36, toilet facilities, including a hopper 31, a wash stand 38 and a medicine cabinet 39. A partition 4U separates adjoining upper rooms upon 25 which is mounted a mirror 4I and a folding table 42. A-communicating door 43 places the adjoining rooms en suite and a door 44 is provided in each room to give access into the aisle.

A stairway 45 leads to the upper room and its 30 top riser 46 serves as one end support for the upper room floor. Extending downwardly from the hopper 31 is a hopper chute 41 which passes through the bottom of the car and discharges onto: the right-of-way. The wash basin 38 dis- 35 charges into the drain 48 which in turn empties -into the hopper chute 41 and thence onto the right-of-way. Extending longitudinally of the car along opposite walls are suitable heating coils 49, 50 and 5|` which supply heat to the l,m aisle and to the rooms, respectively and voverhead Ventilation is furnished for each room through a distribution duct 15 situated above the aisle 34, the aisle in turn serving as the return duct. 45

Below the floor of the upper room is a storage space 5|' positioned directly behind the stairs 45 and a hopper chute compartment 52 positioned between the storage compartment 5l' and the car side 22. Partitions 53 and 54 separate 50 the storage space 5| from the hopper chute enclosure 52 and a oor panel 55 serves as the door for the storage space 5|. A table storage compartment 56 is supported on this floor panel 55 within the storage space 5I and opens in the 55 second riser of the stair 45, as shown at 51. Access may be hadvinto the storage space 5I' from the lower room, as shown in Fig. 2, by raising the back 58 of the sofa 36. A mattress pocket 59 is positioned between the storage space 5l' and the back of the sofa 36.

Floor structure per se The floor structure comprises a sheet 60 made of some light weight material, such as aluminum or the like, yto which is spot welded a corrugated sheet 6l which is stiff enough to support the iloorI loading Without any additional intermediate supporting members. Filler blocks 62 made of cork, rubber or other suitable material are placed between the corrugations, as shown in Fig. 3, and are of suflicient depth that when they are in place their top surfaces are flush with the top surfaces of the corrugations. The usual flooring S3 made of cork or other suitable floor material is affixed to the top of the filler and corrugated sheets and the entire assembly comprising these various elements is pre-fabricated as a sub-assembly and brought to the car for installation.

As shown in Figs. 1 and 3, angle bars 64 and 65 are positioned along the wall 22 and the top of the stairs 45 respectively, for supporting the door on its two ends and other angle bars 66 and 61 are positioned alongthe partition wall 40 and the opposite wall 68 for supporting the oor along its two sides. These angle bars constitute the only means of support for the iioor and the .weight of the loading is carried through the floor structure to these members. An additional bar 69 shown in Fig. 4 is secured to the angle bar 61 and extends upwardly and around the lower edge of the partition 68 to serve as a seal.

With the arrangement in the duplex car, with a storage space and hopper chute enclosure below the upper room floor, it is desirable to have a portion of this floor removable so as to permit access into the hopper chute' enclosure. This is necessary for servicing the piping which is housed in the enclosure. 'I'he floor structure forming .the subject matter of the present invention is particularly Well suited for this type of use since it is self-supporting and consequently there need be no additional stationary floor stringers'to block the passage into the hopper chute enclosure when the removable floor unit is out of place. This unit is indicated in Fig. 3 at 10 and an additional supporting angle bar 1I is provided to receive the free end ofthe removable portion 10 and the end of the stationary portion of the floor 12. The

partition 53 which separates the baggage storage disclosure since other means may be used with equal satisfaction.

What I claim is:

1. A floor construction comprising a -structural framework adapted to bear substantially the whole load on the door between supports and comprising an upper metallic sheet having corrugations extending from end to end of the floor and formed in the sheet substantially across its .entire width and a fiat lower metallic sheet secured to the corrugated sheet between the bot- 'toms' of the corrugations, whereby the lower sheet reacts in tension to loads imposed on the floor and the sheets cooperate to form a plurality of stiff box girders, in combination with relatively 'resilient flooring material filling the channels between corrugations and covering the corrugations, the corrugations being left hollow and the flooring material being of such a character as to perform substantially no beam function.

2. A floor construction comprising a structural framework adapted to bear substantially the whole load on thev floor between supports and comprising an upper metallic sheet having corrugations extending from end to end of the floor and formed in the sheet substantially across the entire sheet, and a relatively flat lower metallic tension memberrsecured to the corrugated sheet between the bottoms of the corrugations, whereby the lower tension member reacts in tension to loads imposedon the floor and the sheets, the sheets and the tension member cooperating to form a plurality of stift` box girders, in combination with relatively resilient flooring material lling the channels between corrugations and covering the corrugations, the-corrugations being left hollow and the flooring material being of such a character as to perform substantially no beam function.

ARTHUR. H. LUNDBERG. 

